Megger HUMMINGBIRD – Audio Frequency Generator

Megger HUMMINGBIRD – Audio Frequency Generator

Key Features:

  • Generate up to 40 kW audio frequency output
  • Deliver currents up to 100 A
  • Track long HV/EHV subsea power cables
  • Pinpoint low-resistance main insulation faults
  • Adjust 10–40 Hz frequency in 1 Hz steps
  • Control voltage, current and frequency independently

The Megger HUMMINGBIRD is a high-power audio frequency generator for demanding subsea power cable applications. It is designed for long HV and EHV AC cables, as well as HVDC interconnectors.

The HUMMINGBIRD injects a controlled, low-frequency modulated current into the cable conductor. The cable shield provides the return path. This creates a magnetic field that subsea receiver systems can detect.

As a result, engineers can track subsea cables and pinpoint low-resistance main insulation faults. The system works with ROV-mounted subsea equipment such as the Megger Magtrack receiver.

The HUMMINGBIRD delivers up to 40 kW output power and 100 A output current. Its frequency range spans 10 to 40 Hz, with adjustments in 1 Hz steps. Furthermore, the generator provides up to 400 V output voltage.

Operation remains straightforward through the 23 cm industrial-grade TFT touchscreen. Users can set voltage, current and frequency independently through the simplified interface.

The generator also maintains harmonic distortion below 3% across its frequency range. Its heavy-duty design supports demanding specialist cable applications.

With its high output capability and dedicated audio frequency method, the HUMMINGBIRD provides a solution for subsea cable tracking and fault pinpointing. Contact C2C Technologies to discuss your subsea cable testing requirements.